Avatar: the Ultimate Demon King

Air, water, earth, fire In this world, there are four elemental powers that can be controlled by people. Due to an accident, he, who was unknown in his previous life, traveled to this fantasy world and was reincarnated as Zuko, the prince of the Fire Nation. Facing him is a demonic system that is always tempting him to become a demon from hell. And his identity is also one of the princes of a brutal empire, and he is a natural enemy of the protagonists of the original work. "I come, I see, I conquer!" "I'll bear it, I'll carry it, I'll direct the way forward!" The mediocrity in his previous life only fueled Zuko's radical heart. He was determined to create a huge empire and unify this chaotic world! Of course, a passionate journey also requires gentle companionship! (ⅈ▱ⅈ) Azula shook Zuko's arm and said angrily: "Give it back to me, give it back to me quickly!" (눈_눈) Mei looked at Zuko, who was surrounded by flowers, and lamented as if she was helpless: "Greedy" (ꈍꈍ๑✿) The carefree Terry pinched the corner of her clothes and timidly punched Zuko: "Keep your word~" Toph gave up her resistance and said helplessly and frustratedly: "Damn it, if I couldn't beat you, you'd be a pervert!" From a distance, Katara, who had never dared to get close, tugged at the corner of Zuko's clothes and said coquettishly: "I agree to your terms!" (To avoid ambiguity, all the above heroines are adults, and the original plot timeline has completely collapsed)